Measles in medical settings--United States.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000635:transmission*; D006801:Humans; D007223:Infant; D008457:Measles / Q000453:epidemiology / Q000635:transmission*; D014481:United States